2. IPCop

IPCop is for small-office and home-office users. This is a Linux firewall distribution, that requires a separate low power PC to run the software. You can configure the firewall rules from a friendly web interface. This is a stateful firewall based on Linux netfilter.

You can take an old PC and convert it to a secure internet application with IPCop, which will secure the home/small-office network from internet and also improve web browser performance by keeping some frequently used information.

4. UFW – Uncomplicated Firewall

UFW is a command line program that helps manage the netfilter iptables firewall. This provides few simple commands to manage iptables. Gufw is a graphical interface for the UFW that is used on Ubuntu distribution. It is very intuitive and easy to manage your iptables firewall using Gufw. You can run Gufw on any Linux distribution that has Python, GTK and ufw.

To allow ssh access in UFW you have to do the following. It’s that easy.